The CBI raid and FIRs filed last Saturday, including those against Bharti Airtel and Vodafone, for excess spectrum given during the NDA regime under former telecom minister Pramod Mahajan is expected to create a standoff between the BJP and the UPA over the 2G scam in Parliament when the session begins on Tuesday. However, fresh complexities arise from the fact that Parliament data now reveals that UPA allocated far more excess spectrum than NDA.